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Patents for Hall Manufacturing Co.
Patents 31 - 45 of 57
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NumberDatePatenteeTitleType
1,931,986Oct. 24, 1933W.E. HeuerCylinder Honehoning tools
1,938,330Dec. 05, 1933E.A. HallSuction Nozzle for Valve-Seat Grindersvalve reseating machines
1,941,837Jan. 02, 1934W.E. HeuerDevice for Adjusting Cylinder Hones and the Likehoning tools
1,941,918Jan. 02, 1934E.F. SchwakopfValve Grinding Machinevalve reseating machines
GB-407,186Mar. 15, 1934H.M. Co.Improvements in Valve Seat Grinding Toolsvalve reseating tools
1,955,182Apr. 17, 1934E.A. HallSuction Device for Cylinder Boring Machinesdust collectors
1,955,183Apr. 17, 1934E.A. HallTool Balancing Meansvalve grinding tools
2,010,759Aug. 06, 1935E.A. HallPilot Stemvalve grinding tools
2,042,782Jun. 02, 1936E.A. HallDust Removing Means for Valve Seat Grinders or the Likedust collectors
2,042,783Jun. 02, 1936E.A. HallAdjusting Means for Sleeve Bearingsindustrial machine bearings
DE-634,784Sep. 03, 1936H.M. Co.Suction Device for Removing Cuttings in Cylinder Boring Machines cylinder maintenance
DE-641,899Feb. 17, 1937H.M. Co.Valve Seat Grinding Machine With Centering Rodvalve and seat maintenance
2,092,117Sep. 07, 1937E.A. HallValve Facing Meansvalve reseating machines
2,116,498May 10, 1938E.A. HallGrinding Machinevalve grinding tools
CA-378,556Dec. 27, 1938E.A. HallGrinding Machinevalve and seat maintenance
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